11647928 has 8 divisors (see below), whose sum is σ = 21839880. Its totient is φ = 5823960.

The previous prime is 11647901. The next prime is 11647939. The reversal of 11647928 is 82974611.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 11647891 and 11647900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727988 + ... + 728003.

It is an arithmetic number, because the mean of its divisors is an integer number (2729985).

Almost surely, 2^11647928 is an apocalyptic number.

It is an amenable number.

11647928 is a deficient number, since it is larger than the sum of its proper divisors (10191952).

11647928 is a wasteful number, since it uses less digits than its factorization.

11647928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455997 (or 1455993 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 11647928 is about 3412.9060930533. The cubic root of 11647928 is about 226.6815772583.

The spelling of 11647928 in words is "eleven million, six hundred forty-seven thousand, nine hundred twenty-eight".